/* 闪狐云机场 Shanhu Cloud - Style Sheet */
/* Morandi Dark Aesthetic with High Contrast Accents, Fox Logo & Songti Typography */

:root {
    --bg-gradient: linear-gradient(to right, rgb(35, 37, 38), rgb(65, 67, 69));
    --card-bg: rgba(26, 29, 31, 0.92);
    --card-hover-bg: rgba(36, 40, 44, 0.96);
    --border-color: rgba(255, 255, 255, 0.12);
    --border-active: rgba(197, 168, 128, 0.65);
    
    /* Morandi Color Palette */
    --morandi-gold: #c5a880;
    --morandi-gold-hover: #d8ba92;
    --morandi-sage: #94a397;
    --morandi-blue: #3b82f6;
    --morandi-mauve: #a38c99;
    --morandi-rose: #c09891;
    
    --text-primary: #f0f2f5;
    --text-secondary: #c8cece;
    --text-muted: #8e9a9d;
    
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 25px rgba(197, 168, 128, 0.28);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 18px;
    
    --font-song: 'SimSun', 'Songti SC', 'STSong', 'Times New Roman', serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-song);
    line-height: 1.85;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Typography & Links */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-song);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.35;
    letter-spacing: 0.5px;
}

a {
    color: var(--morandi-gold);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--morandi-gold-hover);
}

/* Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(35, 37, 38, 0.94);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
}

.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-svg {
    width: 42px;
    height: 42px;
    filter: drop-shadow(0 2px 8px rgba(232, 131, 73, 0.4));
    transition: transform 0.3s ease;
}

.logo-group:hover .logo-svg {
    transform: scale(1.08) rotate(-3deg);
}

.logo-text {
    font-size: 23px;
    font-weight: bold;
    letter-spacing: 1px;
    background: linear-gradient(to right, #ffffff, var(--morandi-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 600;
    padding: 6px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--morandi-gold);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link:hover::after {
    width: 100%;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--morandi-gold), #aa8b60);
    color: #161819;
    font-weight: 700;
    font-size: 15px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(197, 168, 128, 0.35);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(197, 168, 128, 0.5);
    color: #000000;
    background: linear-gradient(135deg, var(--morandi-gold-hover), var(--morandi-gold));
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: var(--morandi-gold);
    color: #ffffff;
}

/* Hero Section */
.hero-section {
    padding: 95px 0 65px;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 22px;
    background: rgba(197, 168, 128, 0.14);
    border: 1px solid rgba(197, 168, 128, 0.35);
    border-radius: 30px;
    color: var(--morandi-gold);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 26px;
}

.hero-title {
    font-size: 48px;
    line-height: 1.25;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--morandi-gold), var(--morandi-rose));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    max-width: 840px;
    margin: 0 auto 40px;
    line-height: 1.75;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    margin-bottom: 60px;
}

/* Metrics Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 28px 20px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--border-active);
    transform: translateY(-4px);
}

.stat-num {
    font-size: 38px;
    font-weight: bold;
    color: var(--morandi-gold);
    margin-bottom: 6px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* Section Header */
.section-header {
    text-align: center;
    margin: 95px 0 50px;
}

.section-title {
    font-size: 36px;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--morandi-gold);
    margin: 12px auto 0;
    border-radius: 2px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Features Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    position: relative;
    overflow: hidden;
    transition: all 0.35s ease;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, transparent, var(--morandi-gold), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    background: var(--card-hover-bg);
    border-color: var(--border-active);
    transform: translateY(-6px);
    box-shadow: var(--shadow-soft);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(197, 168, 128, 0.12);
    border: 1px solid rgba(197, 168, 128, 0.3);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--morandi-gold);
    margin-bottom: 24px;
}

.feature-title {
    font-size: 22px;
    margin-bottom: 14px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.75;
}

/* Pricing Section (Matching Image 1 EXACTLY) */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: stretch;
}

.price-card-v1 {
    background: #191c1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 32px 24px 20px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.35s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.price-card-v1:hover {
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.55);
}

.plan-name-v1 {
    font-size: 22px;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 24px;
}

.price-big-v1 {
    font-size: 44px;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    margin-bottom: 24px;
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.price-big-v1 .unit-v1 {
    font-size: 14px;
    color: #8e9a9d;
    font-weight: normal;
}

.buy-btn-v1 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 12px;
    background: #ffffff;
    color: #0d0e0f;
    font-weight: bold;
    font-size: 15px;
    border-radius: 6px;
    text-decoration: none;
    margin-bottom: 28px;
    transition: all 0.25s ease;
}

.buy-btn-v1:hover {
    background: #e2e8f0;
    color: #000000;
}

.traffic-highlight-v1 {
    font-size: 15px;
    font-weight: bold;
    color: #e2e8f0;
    margin-bottom: 20px;
}

.feature-list-v1 {
    list-style: none;
    margin-bottom: 28px;
    flex-grow: 1;
}

.feature-list-v1 li {
    font-size: 13.5px;
    color: #b0b8bc;
    line-height: 1.8;
    margin-bottom: 8px;
}

.card-footer-bar-v1 {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    text-align: left;
    position: relative;
}

.footer-bar-col-v1 {
    display: flex;
    flex-direction: column;
}

.col-val-v1 {
    font-size: 14px;
    font-weight: bold;
    color: #ffffff;
}

.col-lbl-v1 {
    font-size: 12px;
    color: #788487;
    margin-top: 2px;
}

.blue-line-v1 {
    height: 4px;
    background: #3b82f6;
    border-radius: 2px;
    margin-top: 16px;
    width: 100%;
}

/* User Reviews Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    position: relative;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    border-color: var(--border-active);
    transform: translateY(-4px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--morandi-blue), var(--morandi-mauve));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    color: #ffffff;
}

.user-name {
    font-size: 17px;
    font-weight: bold;
    color: #ffffff;
}

.user-role {
    font-size: 13px;
    color: var(--text-muted);
}

.stars {
    color: var(--morandi-gold);
    margin-bottom: 14px;
    font-size: 14px;
}

.review-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* FAQ Section */
.faq-wrap {
    max-width: 880px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 22px 28px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #ffffff;
}

.faq-answer {
    padding: 0 28px 24px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active {
    border-color: var(--border-active);
    background: var(--card-hover-bg);
}

.faq-toggle-icon {
    font-size: 22px;
    color: var(--morandi-gold);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle-icon {
    transform: rotate(45deg);
}

/* 60 Keyword Tags Section */
.tags-section {
    background: rgba(0, 0, 0, 0.28);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    margin: 85px 0;
}

.tags-title {
    font-size: 22px;
    margin-bottom: 22px;
    text-align: center;
    color: var(--morandi-gold);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.tag-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.25s ease;
}

.tag-item:hover {
    background: rgba(197, 168, 128, 0.18);
    border-color: var(--morandi-gold);
    color: var(--morandi-gold);
    transform: translateY(-2px);
}

/* Blog Cards Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: all 0.35s ease;
}

.blog-card:hover {
    border-color: var(--border-active);
    transform: translateY(-6px);
    box-shadow: var(--shadow-soft);
}

.blog-meta {
    font-size: 13px;
    color: var(--morandi-gold);
    margin-bottom: 12px;
}

.blog-card-title {
    font-size: 20px;
    line-height: 1.4;
    margin-bottom: 14px;
}

.blog-card-title a {
    color: #ffffff;
}

.blog-card-title a:hover {
    color: var(--morandi-gold);
}

.blog-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.blog-read-more {
    font-size: 14px;
    font-weight: bold;
    color: var(--morandi-gold);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Article Detail Styles */
.article-container {
    max-width: 940px;
    margin: 60px auto;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 55px 48px;
    backdrop-filter: blur(12px);
}

.article-header {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 30px;
}

.article-title {
    font-size: 34px;
    line-height: 1.38;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    gap: 20px;
    color: var(--text-muted);
    font-size: 14px;
}

.article-content {
    font-size: 17px;
    line-height: 2.0;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: 26px;
    margin: 40px 0 20px;
    color: var(--morandi-gold);
    border-left: 4px solid var(--morandi-gold);
    padding-left: 14px;
}

.article-content h3 {
    font-size: 21px;
    margin: 30px 0 16px;
    color: #ffffff;
}

.article-content p {
    margin-bottom: 22px;
}

.article-content ul, .article-content ol {
    margin: 0 0 24px 24px;
}

.article-content li {
    margin-bottom: 10px;
}

.article-content blockquote {
    background: rgba(197, 168, 128, 0.08);
    border-left: 4px solid var(--morandi-gold);
    padding: 20px;
    margin: 28px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
}

.article-content th, .article-content td {
    border: 1px solid var(--border-color);
    padding: 14px 18px;
    text-align: left;
}

.article-content th {
    background: rgba(0, 0, 0, 0.35);
    color: var(--morandi-gold);
}

.article-cta-box {
    background: linear-gradient(135deg, rgba(197, 168, 128, 0.15), rgba(45, 49, 52, 0.85));
    border: 1px solid var(--morandi-gold);
    border-radius: var(--radius-md);
    padding: 36px;
    text-align: center;
    margin: 50px 0;
}

.article-cta-box h3 {
    font-size: 24px;
    margin-bottom: 12px;
    color: #ffffff;
}

.article-cta-box p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Footer */
.site-footer {
    background: rgba(20, 22, 23, 0.95);
    border-top: 1px solid var(--border-color);
    padding: 65px 0 32px;
    margin-top: 95px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.75;
    margin-top: 16px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #ffffff;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--morandi-gold);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 1100px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .features-grid, .testimonials-grid, .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    .features-grid, .testimonials-grid, .pricing-grid, .blog-grid, .stats-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .nav-menu {
        display: none;
    }
    .article-container {
        padding: 30px 20px;
    }
}